docker-compose.yml

version: "2"
networks:
  mynet:
    driver: bridge
    ipam:
      config:
      - subnet: 172.25.0.0/24
services:
  lb:
    container_name: lb
    image: haproxy-postgresql
    ports:
      - 8080:8080
      - 5432:5432
      - 5433:5433
    networks:
      mynet:
        ipv4_address: 172.25.0.101
  pg1:
    container_name: pg1
    image: postgresql:9.5
    networks:
      mynet:
        ipv4_address: 172.25.0.102
  pgcheck1:
    image: camptocamp/pgcheck
    network_mode: container:pg1
    depends_on:
     - pg1
  pg2:
    container_name: pg2
    image: postgresql:9.5
    networks:
      mynet:
        ipv4_address: 172.25.0.103
    environment:
      - PG_REPLICA=true
  pgcheck2:
    image: camptocamp/pgcheck
    network_mode: container:pg2
    depends_on:
     - pg2
  pg3:
    container_name: pg3
    image: postgresql:9.5
    networks:
      mynet:
        ipv4_address: 172.25.0.104
    environment:
      - PG_REPLICA=true
  pgcheck3:
    image: camptocamp/pgcheck
    network_mode: container:pg3
    depends_on:
     - pg3